US6193574B1 - Vessel comprising a swivel assembly - Google Patents

Vessel comprising a swivel assembly Download PDF

Info

Publication number
US6193574B1
US6193574B1 US09/331,842 US33184299A US6193574B1 US 6193574 B1 US6193574 B1 US 6193574B1 US 33184299 A US33184299 A US 33184299A US 6193574 B1 US6193574 B1 US 6193574B1
Authority
US
United States
Prior art keywords
swivel
swivels
turret
walls
assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US09/331,842
Other languages
English (en)
Inventor
Jack Pollack
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Single Buoy Moorings Inc
Original Assignee
Single Buoy Moorings Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Single Buoy Moorings Inc filed Critical Single Buoy Moorings Inc
Assigned to SINGLE BUOY MOORINGS INC. reassignment SINGLE BUOY MOORINGS INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: POLLACK, JACK
Application granted granted Critical
Publication of US6193574B1 publication Critical patent/US6193574B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B22/00—Buoys
    • B63B22/02—Buoys specially adapted for mooring a vessel
    • B63B22/021—Buoys specially adapted for mooring a vessel and for transferring fluids, e.g. liquids
    • B63B22/026—Buoys specially adapted for mooring a vessel and for transferring fluids, e.g. liquids and with means to rotate the vessel around the anchored buoy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B22/00—Buoys
    • B63B22/02—Buoys specially adapted for mooring a vessel
    • B63B22/021—Buoys specially adapted for mooring a vessel and for transferring fluids, e.g. liquids

Definitions

  • the invention relates to a vessel comprising a swivel assembly with at least two swivels having a common central axis and a support structure carrying the swivel assembly, each swivel comprising an inner annular wall and concentric therewith an outer annular wall, the annular walls being connected via axial and radial bearings and defining a ring-shaped chamber therebetween.
  • Such a swivel assembly is known from U.S. Pat. No. 4,111,467.
  • the core members of the different swivels are mutually interconnected by means of tension bolts. If one of the swivels from the assembly needs to be exchanged for maintenance or repair work, the core parts need to be disconnected and the upper swivels need to be lifted for one of the swivels to be removed from the assembly in a radial direction.
  • the vessel comprising a swivel assembly is characterised in that the support structure comprises at least two swivels connecting means which are connected to the respective outer or inner annular walls of the swivels and which at least substantially carry the weight of each swivel.
  • the support structure comprises at least two swivels connecting means which are connected to the respective outer or inner annular walls of the swivels and which at least substantially carry the weight of each swivel.
  • no substantial weight-bearing constructions are present between the inner walls of the adjacent swivels and between the outer walls of the swivels.
  • each swivel is independently connected to the support structure, for instance via its outer annular wall, it is possible to exchange an individual swivel without removing the adjacent swivels and without disturbing the outer piping connected to adjacent swivels.
  • the swivel spacing can be as large as needed and sufficient access space to the inner swivel piping can be achieved.
  • the swivel size can be reduced. Because each outer annular wall is connected to the support structure, no individual drives for the rotation of the outer swivels are necessary.
  • ring-shaped chamber as used herein it is intended to comprise chambers with circular, square or other cross-section which have a generally toroidal shape.
  • the inner walls comprise an opening that is in fluid communication with the ring-shaped chamber and that is on one side in fluid communication with a duct connected to the inner annular wall.
  • the ducts of the swivels extend in the axial direction within the central space bounded by the inner annular walls.
  • the duct that is connected to the inner wall of a first swivel and which extends in the region of a second swivel located above or below the first swivel, is comprised of detachable pipe segments.
  • the second swivel can be removed in the radial direction when the pipe segments of the first swivel are decoupled.
  • the supporting structure may comprise a frame which is mounted on the turret or on the hull, wherein the frame is placed in such a position with respect to the swivels that after disconnecting the swivels, they can be removed from the assembly in a radial direction. This means that the spacing between the support elements of the frame structure should be larger than the diameter of the outer annular walls.
  • the inner annular walls are mutually coupled by a rotation transfer member. At least one of the inner walls is connected to a rotation drive means that is connected to the hull. In this way the inner rings can be accurately rotated in conjunction with the hull of the vessel.
  • the rotation transfer members may comprise for instance a bolt connection between each inner annular wall.
  • the vessel may comprise a gantry which extends above the turret, the rotation drive means being mounted on the gantry.
  • the frame of the swivel assembly is suspended from the gantry wherein the inner annular walls are mutually coupled by rotation transfer members and at least one of the inner walls is fixedly connected to the turret.
  • the outer rings will rotate with the vessel and no drive means are necessary as the weight of the outer rings is sufficiently low to be rotated by means of the gantry and the frame.
  • FIG. 1 is a schematic side view of a swivel according to the present invention wherein the frame is connected to the turret.
  • FIG. 2 is a schematic side view of a swivel assembly according to the present invention wherein the frame is connected to a gantry.
  • FIG. 3 shows an axial cross-sectional view of a swivel assembly according to the present invention wherein the piping is comprised of pipe segments.
  • FIG. 4 shows a radial cross-sectional view to the swivel assembly according to FIG. 3, wherein the space between the support elements of the frame is shown,
  • FIG. 5 shows another embodiment of a swivel assembly according to the present invention, including a temporary bypass construction along a pipe segment.
  • FIG. 6 shows another schematic side view of a swivel assembly.
  • FIG. 1 shows a vessel 1 , comprising a hull 2 in which a cylindrical opening or turret well 3 is provided.
  • a turret 4 is located in the turret well 3 and is rotatably supported on bearings 5 .
  • the turret is geostationary and is connected to a subsea oil structure by means of one or more risers 6 .
  • the vessel 2 can weathervane around the geostationary turret 4 . Trough the riser 6 , hydrocarbons are supplied to a swivel assembly 7 where the hydrocarbons are transferred to product piping 8 .
  • the swivel assembly 7 provides a rotatable connection between the geostationary riser 6 and the rotating product piping 8 .
  • the swivel assembly 7 comprises a number of individual swivels 10 , 11 , 12 .
  • Each swivel comprises an outer annular wall 13 and an inner annular wall 14 .
  • the annular walls 13 , 14 are mutually connected by means of axial and radial bearings 15 and 16 .
  • the walls 13 and 14 which can rotate with respect to one another, define an annular or toroidal chamber 17 . Openings 18 , 19 are provided in the inner and outer walls 14 and 13 . Via the openings 18 , 19 the product piping 8 and the riser 6 are connected to the central toroidal chamber 17 .
  • each outer annular wall 13 of each swivel is connected to a frame 21 via connecting means 22 , 23 .
  • the connecting means 22 , 23 can be disconnected from the outer wall 13 or from the frame 21 such that each individual swivel 10 , 11 , 12 can be removed from the assembly 7 .
  • the frame 21 is fixedly connected to the turret 4 .
  • the inner walls 14 of the swivels 10 , 11 , 12 in the assembly 7 are mutually connected by means of rotation transfer members or bolts 24 .
  • the inner annular wall 14 of the upper swivel 10 is connected to a gantry 25 via a rotational drive mechanism 26 or they can be individually driven by a gear drive and motor on a passive structure extending down from gantry 25 .
  • the rotational drive mechanism 26 may for instance comprise one or more motor drives for turning the inner rings 14 individually, in sets or totally in conjunction with the position of the vessel with respect to the turret.
  • a rigid coupling between the gantry 26 and the inner rings 14 is not preferred as this could generate problems due to relative motions between the gantry and turret attachment.
  • a rotationally rigid but laterally flexible rotational mechanism could be used to turn the swivel walls 14 from the gantry.
  • each swivel in the assembly 7 comprises one or more respective risers and one or more respective product pipes such that each time at least three ducts will extend at the outside of the swivel assembly 7 and at least three ducts will extend through the central space 27 of the swivel assembly 7 .
  • FIG. 2 shows an embodiment wherein the frame 21 is suspended from the gantry 25 .
  • the inner annular walls 14 of the swivels in the assembly 7 are fixedly connected to the turret 4 . Due to the relatively light weight of the outer annular walls, they can be directly connected to the gantry 26 via the frame 21 .
  • An alternative arrangement is shown by FIG. 6 .
  • three ducts 28 , 29 , 30 extend within the central space 27 .
  • the first duct 28 is connected to the central chamber 17 of the swivel 12 .
  • the second duct 29 is connected to the second swivel 11 and the third duct is connected to third swivel 10 .
  • the duct 30 comprises three segments 30 ′, 30 ′′ and 30 ′′′. The three segments are interconnected by means of flanges 32 IV .
  • the duct 29 is comprised of two segments 29 ′, 29 ′′ connected via a flange 34 .
  • the duct 28 comprises a flange 35 ′. For removal of the swivel 12 , the connecting means of that swivel are decoupled from the frame 21 .
  • the pipe 28 is decoupled at its flange 35 ′, the pipe 29 is decoupled at its flanges 34 , 34 ′ and the pipe 30 is decoupled at its flanges 32 IV .
  • the distance between the legs of frame 21 is larger than the diameter of the swivels 10 , 11 , 12 . Thereby the swivels can pass between the connecting elements 22 , 23 .
  • FIG. 5 shows an embodiment of a swivel assembly 40 connected to several separate decks of a turret.
  • the turret 42 is rotatably connected via bearing 48 to the hull of the vessel 41 .
  • a first swivel 44 is via a swivel support 45 connected to a first deck 46 of the turret 42 .
  • a second swivel 47 is connected to a second deck 48 via an individual swivel support 49 .
  • the outer walls of each swivel 44 , 47 are connected to a pipe manifold 50 , 51 .
  • the piping at the position of the upper swivel 47 comprises a pipe segment 52 which may be disconnected for removal of the upper swivel 47 or the lower swivel 44 from their supports 40 , 49 .
  • Each swivel 44 , 47 is easily accessible via its respective deck for maintenance purposes. As the swivels are not interconnected in a weightbearing manner, each swivel can be easily replaced without disturbance of the operation of the other swivels, at a minimum down time.
  • FIG. 5 a bypass construction around pipe segment 52 is shown which is applied when the swivel 47 needs to be replaced.
  • the pipe segment 52 comprises at its outer ends coupling flanges 53 , 53 ′. Each coupling flange is detachably connected to a two-way valve 54 , 55 .
  • the two-way valves 54 , 55 are connected to the temporary bypass 56 .
  • the pipe segment 52 can be decoupled at its flanges 53 , 53 ′ and the swivel 47 can be removed for the assembly for repair purposes.
  • repair, or maintenance the swivel 47 can be replaced in its original position and the pipe segment 52 can be put back in place and the bypass 56 can be removed.
  • This bypass construction is only possible when a limited degree of weathervaning of the vessel around the turret is possible, otherwise the bypass piping 56 will clash with the other product piping. By means of this bypass construction the down time can be reduced during repair or maintenance.
  • each swivel is an individual unit which is not interconnected in a weight bearing manner to an adjacent swivel, it may occur that smaller type swivels or electrical swivels are connected to any one of the swivels in the assembly as shown in the figures without departing from the scope of the present invention.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Joints Allowing Movement (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Cleaning In General (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
US09/331,842 1997-10-28 1998-10-28 Vessel comprising a swivel assembly Expired - Fee Related US6193574B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP97203338 1997-10-28
EP97203338A EP0913324A1 (fr) 1997-10-28 1997-10-28 Bateau avec ensemble à tourillon
PCT/EP1998/006999 WO1999021754A1 (fr) 1997-10-28 1998-10-28 Bateau comprenant un ensemble de tetes d'injection

Publications (1)

Publication Number Publication Date
US6193574B1 true US6193574B1 (en) 2001-02-27

Family

ID=8228871

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/331,842 Expired - Fee Related US6193574B1 (en) 1997-10-28 1998-10-28 Vessel comprising a swivel assembly

Country Status (7)

Country Link
US (1) US6193574B1 (fr)
EP (2) EP0913324A1 (fr)
AU (1) AU1559699A (fr)
BR (1) BR9806718A (fr)
CA (1) CA2275967C (fr)
NO (1) NO319951B1 (fr)
WO (1) WO1999021754A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030138299A1 (en) * 1999-12-23 2003-07-24 Jorgen Eide Cooling water system
US20070292243A1 (en) * 2004-11-22 2007-12-20 Jacob De Baan Apparatus For Offshore Transfer Of Fluid
US20080140337A1 (en) * 2006-12-06 2008-06-12 Chevron U.S.A. Inc. Overpressure protection device
US20080135256A1 (en) * 2006-12-06 2008-06-12 Chevron U.S.A. Inc. Subsea Manifold System
US20080135258A1 (en) * 2006-12-06 2008-06-12 Chevron U.S.A. Inc. Method for Preventing Overpressure
CN100510312C (zh) * 2003-06-04 2009-07-08 信号系泊浮筒公司 海上生产系统以及在其上安装钻井/修井装置的方法
US7793726B2 (en) 2006-12-06 2010-09-14 Chevron U.S.A. Inc. Marine riser system
US20140261826A1 (en) * 2013-03-12 2014-09-18 Bluewater Energy Services B.V. Assembly for transferring fluids between a vessel and a turret structure mounted in said vessel
US20140301807A1 (en) * 2010-11-30 2014-10-09 Raymond Hallot Marine mounting provided with a device for storing and guiding hoses
US20220281561A1 (en) * 2019-08-23 2022-09-08 Shandong Dingsheng Electromechanical Equipment Inc. Single-upright-column mooring type wellhead prodcution operation platform

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7172479B2 (en) * 2003-06-04 2007-02-06 Single Buoy Moorings, Inc. Offshore production system with drilling/workover rig
EP2404821A1 (fr) * 2010-07-07 2012-01-11 Single Buoy Moorings Inc. Procédé de remplacement d'une bague annulaire extérieure d'une rotule pour fluide et rotule pour fluide
KR101616848B1 (ko) * 2014-06-12 2016-04-29 삼성중공업 주식회사 스위블 스택

Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2781134A (en) * 1953-06-09 1957-02-12 Lee D Weir Apparatus for controlling truck operation from crane cab
US3082440A (en) * 1960-05-16 1963-03-26 Internat Marine And Oil Dev Co Buoys for ship loading, unloading or bunkering
US3120106A (en) 1959-01-22 1964-02-04 Christopher J Foster Off shore moorings
US3237220A (en) * 1962-01-31 1966-03-01 Imodco Internat Ltd Pipe swivels
US3957291A (en) * 1975-01-10 1976-05-18 The Offshore Company Ball joint assembly with internal passages
US3969781A (en) * 1973-08-27 1976-07-20 Imodco, Inc. Mooring and cargo transfer system for difficult handling cargo
GB1444345A (en) * 1972-08-07 1976-07-28 Davies R H Single-point mooring systems
GB1447413A (en) 1974-01-24 1976-08-25 Gec Elliott Mech Handling Oil tankers for storing oil offshore
US4126336A (en) * 1976-12-20 1978-11-21 Exxon Production Research Company Multiline swivel
US4138751A (en) * 1977-04-18 1979-02-13 Amtel, Inc. Removable fluid swivel for mooring terminals
GB1549766A (en) 1976-07-09 1979-08-08 Brown J Const Ltd Offshore terminals
US4174127A (en) * 1978-04-07 1979-11-13 Chicago Bridge & Iron Company Multiport piggable fluid swivel
US4270611A (en) * 1977-12-30 1981-06-02 Institut Francais Du Petrole Mooring station and transfer terminal for offshore hydrocarbon production
US4320545A (en) 1978-10-23 1982-03-23 Amtel, Inc. Easily removable fluid swivel for SALM buoy installation
US4602586A (en) * 1984-12-24 1986-07-29 Exxon Production Research Co. Motion decoupling mechanism for fluid swivel stack
US4647077A (en) * 1984-12-17 1987-03-03 Sofec, Inc. High pressure product swivel
US5052322A (en) * 1988-04-19 1991-10-01 Single Buoy Moorings Inc. Ship with mooring means
US5071171A (en) * 1989-12-11 1991-12-10 Single Buoy Moorings Inc. Swivel
WO1993024733A1 (fr) 1992-05-25 1993-12-09 Den Norske Stats Oljeselskap A.S. Systeme utilise pour la production de petrole sous-marin
US5823837A (en) * 1997-11-20 1998-10-20 Fmc Corporation Turret mooring system with product swivel stack
US5983931A (en) * 1995-06-22 1999-11-16 Den Norske Stats Oljeselskap A.S. Rotating connector with integrated LNG course

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL168770C (nl) 1976-04-13 1982-05-17 Ihc Holland Nv Draaibare koppeling voor twee of meer leidingen voor een overslagboei.

Patent Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2781134A (en) * 1953-06-09 1957-02-12 Lee D Weir Apparatus for controlling truck operation from crane cab
US3120106A (en) 1959-01-22 1964-02-04 Christopher J Foster Off shore moorings
US3082440A (en) * 1960-05-16 1963-03-26 Internat Marine And Oil Dev Co Buoys for ship loading, unloading or bunkering
US3237220A (en) * 1962-01-31 1966-03-01 Imodco Internat Ltd Pipe swivels
GB1444345A (en) * 1972-08-07 1976-07-28 Davies R H Single-point mooring systems
US3969781A (en) * 1973-08-27 1976-07-20 Imodco, Inc. Mooring and cargo transfer system for difficult handling cargo
GB1447413A (en) 1974-01-24 1976-08-25 Gec Elliott Mech Handling Oil tankers for storing oil offshore
US3957291A (en) * 1975-01-10 1976-05-18 The Offshore Company Ball joint assembly with internal passages
GB1549766A (en) 1976-07-09 1979-08-08 Brown J Const Ltd Offshore terminals
US4126336A (en) * 1976-12-20 1978-11-21 Exxon Production Research Company Multiline swivel
US4138751A (en) * 1977-04-18 1979-02-13 Amtel, Inc. Removable fluid swivel for mooring terminals
US4270611A (en) * 1977-12-30 1981-06-02 Institut Francais Du Petrole Mooring station and transfer terminal for offshore hydrocarbon production
US4174127A (en) * 1978-04-07 1979-11-13 Chicago Bridge & Iron Company Multiport piggable fluid swivel
US4320545A (en) 1978-10-23 1982-03-23 Amtel, Inc. Easily removable fluid swivel for SALM buoy installation
US4647077A (en) * 1984-12-17 1987-03-03 Sofec, Inc. High pressure product swivel
US4602586A (en) * 1984-12-24 1986-07-29 Exxon Production Research Co. Motion decoupling mechanism for fluid swivel stack
US5052322A (en) * 1988-04-19 1991-10-01 Single Buoy Moorings Inc. Ship with mooring means
US5071171A (en) * 1989-12-11 1991-12-10 Single Buoy Moorings Inc. Swivel
WO1993024733A1 (fr) 1992-05-25 1993-12-09 Den Norske Stats Oljeselskap A.S. Systeme utilise pour la production de petrole sous-marin
US5983931A (en) * 1995-06-22 1999-11-16 Den Norske Stats Oljeselskap A.S. Rotating connector with integrated LNG course
US5823837A (en) * 1997-11-20 1998-10-20 Fmc Corporation Turret mooring system with product swivel stack

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6845727B2 (en) * 1999-12-23 2005-01-25 Statoil Asa Cooling water system
US20030138299A1 (en) * 1999-12-23 2003-07-24 Jorgen Eide Cooling water system
CN100510312C (zh) * 2003-06-04 2009-07-08 信号系泊浮筒公司 海上生产系统以及在其上安装钻井/修井装置的方法
US20070292243A1 (en) * 2004-11-22 2007-12-20 Jacob De Baan Apparatus For Offshore Transfer Of Fluid
US7793724B2 (en) 2006-12-06 2010-09-14 Chevron U.S.A Inc. Subsea manifold system
US20080135258A1 (en) * 2006-12-06 2008-06-12 Chevron U.S.A. Inc. Method for Preventing Overpressure
US20080135256A1 (en) * 2006-12-06 2008-06-12 Chevron U.S.A. Inc. Subsea Manifold System
US7793726B2 (en) 2006-12-06 2010-09-14 Chevron U.S.A. Inc. Marine riser system
US20080140337A1 (en) * 2006-12-06 2008-06-12 Chevron U.S.A. Inc. Overpressure protection device
US7793725B2 (en) * 2006-12-06 2010-09-14 Chevron U.S.A. Inc. Method for preventing overpressure
US7798233B2 (en) * 2006-12-06 2010-09-21 Chevron U.S.A. Inc. Overpressure protection device
US20140301807A1 (en) * 2010-11-30 2014-10-09 Raymond Hallot Marine mounting provided with a device for storing and guiding hoses
US9308972B2 (en) * 2010-11-30 2016-04-12 Saipem S.A. Marine mounting provided with a device for storing and guiding hoses
US20140261826A1 (en) * 2013-03-12 2014-09-18 Bluewater Energy Services B.V. Assembly for transferring fluids between a vessel and a turret structure mounted in said vessel
US9097374B2 (en) * 2013-03-12 2015-08-04 Bluewater Energy Services B.V. Assembly for transferring fluids between a vessel and a turret structure mounted in said vessel
US20220281561A1 (en) * 2019-08-23 2022-09-08 Shandong Dingsheng Electromechanical Equipment Inc. Single-upright-column mooring type wellhead prodcution operation platform
US11820467B2 (en) * 2019-08-23 2023-11-21 Shandong Dingsheng Electromechanical Equipment Inc. Single-upright-column mooring type wellhead production operation platform

Also Published As

Publication number Publication date
NO319951B1 (no) 2005-10-03
CA2275967A1 (fr) 1999-05-06
WO1999021754A1 (fr) 1999-05-06
BR9806718A (pt) 2005-08-23
EP0960047B1 (fr) 2006-07-19
EP0960047A1 (fr) 1999-12-01
NO993188D0 (no) 1999-06-25
CA2275967C (fr) 2005-06-28
EP0913324A1 (fr) 1999-05-06
AU1559699A (en) 1999-05-17
NO993188L (no) 1999-08-26

Similar Documents

Publication Publication Date Title
US6193574B1 (en) Vessel comprising a swivel assembly
US4212561A (en) Marine structure connecting structures at different levels
RU2529114C2 (ru) Устройство для приема и переработки жидкостей, включая плавучий объект, снабженное одноточечной системой постановки на мертвый якорь
US5746148A (en) Radial support assembly for an apparatus for positioning a vessel
US4052090A (en) Multiport swivel joint
US4138751A (en) Removable fluid swivel for mooring terminals
US7891508B2 (en) Crane radial support bearing
US6269762B1 (en) Vessel-turret assembly having radially guided bogie wheels
US4597595A (en) Swivel-less coupling apparatus
US4715404A (en) Arrangement for disassembling sealing and bearing means from rotary pipe joints
US4288106A (en) Rotatable swivel for one or more conduits
AU2015248999B2 (en) External turret having bogie wheels
US4306741A (en) Rotatable swivel for one or more conduits
US4022498A (en) Fluid loading arm swivel joint
CA2279600C (fr) Dispositif d'entrainement pivotant
EP1224377B1 (fr) Batiment de forage flottante et de reconditionnement pourvue d'un train de tiges de forage s'etendant au moins a travers une tete d'injection
CN108139010B (zh) 转环堆
US8123053B2 (en) Boom slewing actuator system
GB2350342A (en) Catenary Anchor Leg Mooring Buoy
JPS5913190A (ja) ハイドロモ−タ用モ−タ懸架装置
US3727641A (en) Loading arm
JP2717610B2 (ja) 流体スイベル装置およびそれを用いた流体を流す方法
GB2333139A (en) Fluid transfer apparatus
WO1998034829A1 (fr) Dispositif d'ancrage geostationnaire pour vaisseau
GB2188998A (en) Modular swivel

Legal Events

Date Code Title Description
AS Assignment

Owner name: SINGLE BUOY MOORINGS INC., SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:POLLACK, JACK;REEL/FRAME:010116/0705

Effective date: 19990607

FPAY Fee payment

Year of fee payment: 4

FPAY Fee payment

Year of fee payment: 8

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

FP Lapsed due to failure to pay maintenance fee

Effective date: 20130227